.post {
    position: fixed;
    bottom: 50px;
    left: 50px;
}

.textbox {
    width: 840px;
    min-height: 300px;
    height: auto;
    margin: 0 auto;
    background-image: url(../imgs/hutao.gif);
    filter: alpha(opacity=50);
    /* opacity: 0.5; */
    background-position: 680px 65px;
    background-repeat: no-repeat;
    border: solid #000000;
}

.headline {
    margin: 0 auto;
    position: relative;
    top: 25px;
    left: -360px;
    width: 70px;
    height: 35px;
    background-color: #f8f8f8;
    border: solid 1px #000000;
    display: flex;
    /*实现垂直居中*/
    align-items: center;
    /*实现水平居中*/
    justify-content: center;
    font: 900 17px '';
}

.hlp {
    position: relative;
    top: -10px;
    left: 98px;
    width: 592px;
    font-size: 20px;
    background-color: transparent;
}

.put {
    position: relative;
    top: 12px;
    left: 25px;
    width: 667px;
    height: 150px;
    background-color: transparent;
    font-size: 20px;
}

.send {
    position: relative;
    top: 22px;
    left: 571px;
}